The process of maintaining sterility throughout a surgical procedure is called ____ technique

When coding, medical assistants must first search for a code in the ________

a. Tabular List b. Index c. Introductory Matter d. CPT Index

The middle ear serves an impedance-matching function by

A) amplifying the force per unit area. B) reducing the area over which the existing force is exerted. C) a & b D) neither of the above.